Abstract
The bioelectrical gradients of the rabbit tracheal wall after SO2 exposure were investigated bya capillary microelectrode. Various kinds of bioelectrical potential profiles such as the reductio nof amplirude or frequency of the epithelial layer and the occurrence of spontaneous randomdischarges of the smooth muscle were recorded in the experimental subjects.
Scanning elctron microscopic observations on the ciliated epithelia with a capillary microelectr odepenetrated into the specimen after bioelectrical activity study were also done. The surface architectureof the trachea exposed to SO2 could be demonstrated a much more thickness of the mucousblanket in sticky nature which had coated over the cell and cilia.
From these findings, it could be presumed thet the typical spike potentiel corresponded to ciliarymovemnt could not seen in the affected trachea in order to inhibit the proper function of the ciliasince the most of them were embedded in such gel layer.
